States and Territories

Filter Total Items: 2,589
Date published: October 23, 2019
Status: Active

San Francisco Bay Area – SF Peninsula (BALT4) Site near Pacifica, CA

Recent Conditions

The instruments for this site were installed in the winter of 2012 and are used to monitor and detect changes in local conditions.  Soil water content and ground water pressure are monitored at two nests on the same hillslope.  Data for the site include:

  • ...
Contacts: Brian Collins
Date published: October 23, 2019
Status: Active

San Francisco Bay Area – SF Peninsula (BALT3) Site near Brisbane, CA

Recent Conditions

The instruments for this site were installed in the summer of 2011 and are used to monitor and detect changes in local conditions.  Soil water content and ground water pressure are monitored at two nests on the same hillslope.  Data for the site include:

  • ...
Contacts: Brian Collins
Date published: October 23, 2019
Status: Active

Alaska

Probabilistic seismic hazard maps have been prepared for Alaska portraying ground motion values (peak ground acceleration and spectral amplitude at periods of 0.2, 0.3 and 1.0 seconds) at probabilities of exceedance of 2% and 10% in 50 years. Preparation of these maps followed the same general strategy as that followed for the U.S.G.S. seismic hazard maps of the contiguous United States,...

Date published: October 23, 2019
Status: Active

San Francisco Bay Area – Marin County (BALT2) Site near San Rafael, CA

Recent Conditions

The instruments for this site were installed in the winter of 2010 and are used to monitor and detect changes in local conditions.  Soil water content and ground water pressure are monitored at two nests on the same hillslope.  Data for the site include:

  • ...
Contacts: Brian Collins
Date published: October 23, 2019
Status: Active

Drivers and Impacts of North Pacific Climate Variability

Climate model forecasts indicate an increase in extreme hydrologic events, including floods and droughts, for California and the western U.S. in the future. To better understand what the consequences of this future change in climate may be, USGS scientists are studying the frequency, magnitude, and impacts of past hydroclimate variability and extremes in the region. This project produces well-...

Date published: October 21, 2019
Status: Active

Ozark Dome-Arkoma Basin-Ouachita Transect

The Ozark Dome-Arkoma Basin-Ouachita Transect (ODABOuT) project examines the three-dimensional geology of a transect of the southern orogenic margin of North America in its best surface exposure in western Arkansas. The Ozark Dome and Arkoma Basin represent a foreland uplift and foreland basin that formed as a result of the impinging Ouachita orogenic belt. Understanding the geometry and...

Date published: October 17, 2019
Status: Completed

What if the ShakeAlert Earthquake Early Warning System Had Been Operating During the M6.9 1989 Loma Prieta Earthquake?

How will ShakeAlert® likely perform now on a large earthquake impacting a major urban area? How much warning will you get? To answer this, let’s do a thought experiment...

Date published: October 17, 2019
Status: Active

Resources: EXPRESS

Along the U.S. west coast, the Pacific Ocean, ocean floor, and winds above contain potentially vast energy and mineral resources. Developing these resources safely and wisely requires detailed information for each area of interest. One goal of EXPRESS is to inform ocean...

Date published: October 17, 2019
Status: Active

Ecosystems: EXPRESS

The continental shelf and slope offshore California, Oregon, and Washington are home to deep-sea corals, chemosynthetic communities, and other sensitive habitats that could be impacted by the development of energy and mineral resources. The EXPRESS campaign will map and...

Date published: October 17, 2019
Status: Active

CoSMoS 3.1: Central California

CoSMoS v3.1 for central California shows projections for future climate scenarios (sea-level rise and storms)

Date published: October 17, 2019
Status: Active

Coastal Storm Modeling System (CoSMoS)

The Coastal Storm Modeling System (CoSMoS) makes detailed predictions of storm-induced coastal flooding, erosion, and cliff failures over large geographic scales. CoSMoS was developed for hindcast studies, operational applications and future climate scenarios to provide emergency responders and coastal planners with critical storm-hazards information that can be used to increase public safety...